Birds Feeding on Herring Eggs at the Yaquina Estuary, Oregon

Bayer, Range D.

doi:10.2307/1367477

Cited by 14 publications

(10 citation statements)

References 4 publications

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“…Similarly, at a herring run in Oregon, brants pirated eggs from coots, wigeon (Anas americana) from coots and scaup (Aythya sp. ), bufflehead from scaup, and gulls from other species and each other (Bayer 1980). Highly aggregated prey also provide an opportunity for cooperative foraging by multiple predators, as reported for humpback whales (Jurasz and Jurasz 1979, pers.…”

Section: Specialized Foraging Methodsmentioning

confidence: 82%

“…The nutritional value, high density, and seasonal timing of the herring runs indicate Munro and Clemens (1931), Grass (1973), Bayer (1980), Vermeer (1981, Bishop andGreen 2001 Glaucous-winged gull (L. glaucescens) OR, SoG, WV, PWS Munro and Clemens (1931), Outram (1958), Bayer (1980), Vermeer (1981), , Haegele and Schweigert (1989), Bishop and Green (2001) SoG, WV Vermeer (1981), see also Vermeer (1983), Haegele and Schweigert (1989) Pelagic cormorant*** (P. pelagicus) SoG, WV Munro and Clemens (1931), Vermeer (1981), Haegele and Schweigert (1989) Western grebe** SoG Vermeer (1981), see also Vermeer (1983) Common loon*** SoG Sullivan et al (2002) Shorebirds, alcids, coot Common murre ** SoG Munro andClemens (1931) Rev Fish Biol Fisheries (2006) 16:183-200 189 seasonally important opportunities for predators to obtain energy and nutrients relatively easily and quickly. That so many predators often gather at herring runs strongly suggests that the runs are important to predator biology.…”

Section: Major Predators At Herring Spawnsmentioning

confidence: 99%

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Vertebrate exploitation of pulsed marine prey: a review and the example of spawning herring

Willson

Womble

2006

Rev Fish Biol Fisheries

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Short-term bursts of prey availability occur in many ecosystems and have potential important consequences for both predator biology and ecosystem function. Examples of prey 'pulses' in marine ecosystems include spawning runs of several anadromous and marine fishes, horseshoe crab spawning, and salmonid juvenile outmigrations, which are exploited by numerous species of vertebrate predators. In a few cases, the fitness or demographic consequences of such predator-prey interactions are known or inferred, but too often that information remains unknown. We explored the extent of temporal and spatial variation in one example of a pulsed marine resource: the spawning of Pacific herring (Clupea pallasii). Spawning herring provide a rich, aggregated resource to which dozens of species of vertebrate predators often exhibit strong numerical responses. However, the spawning events are often variable in both time (annual differences of several to many weeks) and space (both regional and more local differences in size and timing of events). Such variability must affect more mobile predators less than area-restricted predators, and thus its effect would vary not only among species but also within species, depending on constraints of the predator life history. Unpredictability of the prey concentrations, whatever their proximate causes, may contribute to maintenance of metapopulations of prey such as herring, if unpredictability lessens the impact of predation.

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Section: Specialized Foraging Methodsmentioning

confidence: 82%

Section: Major Predators At Herring Spawnsmentioning

confidence: 99%

Vertebrate exploitation of pulsed marine prey: a review and the example of spawning herring

Willson

Womble

2006

Rev Fish Biol Fisheries

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“…Graybill 1981, Brown and Mate 1983, Roffe and Mate 1984. At Yaquina Estuary, the February peak of seals in some years occurred when herring (Clupea harengus) were ready to spawn (Bayer 1980); California sea lions (Zalophus californianus) also became numerous during this time, presumably also to feed on herring (Bayer 1981a). The summer maximum of seals at Yaquina Estuary occurred when northern anchovies (Engraulis mordax), shiner perch (Cymatogaster aggregata), Pacific staghorn sculpin (Leptocottus armatus), and English sole (Parophrys vetulus) are abundant (Myers 1980, Bayer 1981b; all these fish are important prey for seals in Oregon and Washington (Graybill 1981, Brown andMate 1983).…”

Section: Resultsmentioning

confidence: 99%

Six Years of Harbor Seal Censusing at Yaquina Estuary, Oregon

Bayer¹

1985

The Murrelet

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“…Not surprisingly, some of this production is directly consumed by fishes, birds, and various invertebrate predators (Bayer, 1980;Frank & Leggett, 1984;DeBlois & Leggett, 1991, 1993Haegele, 1993a, b;Willson & Womble 2006). Fish eggs may constitute a significant pulse of organic carbon to these sediments.…”

Section: Discussionmentioning

confidence: 99%

Temporal and spatial patterns of organic carbon are linked to egg deposition by beach spawning horseshoe crabs (Limulus polyphemus)

Botton

Loveland

2010

Hydrobiologia

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The spring spawning by the American horseshoe crab (Limulus polyphemus L.) results in temporally and spatially discrete inputs of eggs onto sandy beaches in Delaware Bay, USA. We tested the hypothesis that seasonal patterns of sediment organic carbon on Delaware Bay beaches is linked to this pulsed input of horseshoe crab eggs. At a location with minimal horseshoe crab spawning activity (Higbee Beach), there was little seasonal variation in sediment organic carbon, no distinction between organic carbon levels as a function of shoreline position or sediment depth, and no significant correlation between the abundance of crab eggs and percent organic carbon. Conversely, at a prime horseshoe crab spawning habitat (North Beach), organic carbon levels were seasonally pulsed and were correlated with egg abundance. Moreover, the strongest evidence of seasonality was seen at the middle foreshore location at the 15-20 cm depth, consistent with the highest input of horseshoe crab eggs. Although some of the organic carbon contributed by horseshoe crab eggs in May-June leaves the beach in the form of hatched larvae later in the year, there is a net input of organic carbon to the system in the form of unfertilized and/or dead eggs, egg membranes, and embryonic molts. We suggest that the inputs of eggs from horseshoe crabs and other beach spawning animals, such as grunion and capelin, make significant contributions to the energy budget of sandy beaches.

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Birds Feeding on Herring Eggs at the Yaquina Estuary, Oregon

Cited by 14 publications

References 4 publications

Vertebrate exploitation of pulsed marine prey: a review and the example of spawning herring

Vertebrate exploitation of pulsed marine prey: a review and the example of spawning herring

Six Years of Harbor Seal Censusing at Yaquina Estuary, Oregon

Temporal and spatial patterns of organic carbon are linked to egg deposition by beach spawning horseshoe crabs (Limulus polyphemus)

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